Compiler path is C:\Keil_v5\C51\BIN 系统找不到指定的路径。

这个错误提示意味着系统无法找到指定的路径。请确认您的 Keil C51 安装路径是否为 C:\Keil_v5\C51，并且确保在 BIN 文件夹中存在编译器可执行文件。如果您安装的路径不同，请修改路径为正确的安装路径。另外，还需要确认您是否已经正确安装了 Keil C51 编译器。如果您已经安装了 Keil C51 编译器，但仍然遇到问题，请重新安装编译器并确保路径设置正确。如果问题仍然存在，请尝试联系 Keil 技术支持获取更多帮助。

相关问题

--- Error: failed to execute 'C:\Keil_v5\ARM\ARM_Compiler_5.06u7\ARM_Compiler_5.06u7\Bin\ArmLink'

根据提供的引用内容，错误信息 "Error: failed to execute 'C:\Keil_v5\ARM\ARM_Compiler_5.06u7\ARM_Compiler_5.06u7\Bin\ArmLink'" 没有与之相关的引用内容。这个错误信息可能是由于某种原因导致无法执行 'C:\Keil_v5\ARM\ARM_Compiler_5.06u7\ARM_Compiler_5.06u7\Bin\ArmLink' 这个路径下的程序。可能的原因包括文件路径错误、权限问题、缺少必要的文件或配置问题。您可以检查文件路径是否正确，并确保您具有执行该程序所需的权限。如果问题仍然存在，您可以尝试重新安装或更新相关软件，或与软件供应商或技术支持部门联系以获取进一步的帮助。<span class="em">1</span><span class="em">2</span><span class="em">3</span>
#### 引用[.reference_title]
- *1* *2* *3* [ARM 之九 Cortex-M/R 内核 Keil（ARMCC） 程序启动流程](https://blog.csdn.net/ZCShouCSDN/article/details/89843714)[target="_blank" data-report-click={"spm":"1018.2226.3001.9630","extra":{"utm_source":"vip_chatgpt_common_search_pc_result","utm_medium":"distribute.pc_search_result.none-task-cask-2~all~insert_cask~default-1-null.142^v93^chatsearchT3_2"}}] [.reference_item style="max-width: 100%"]
[ .reference_list ]

C:\Keil_v5\C51\Inc\reg52.h(5): warning C318: can't open file 'public.h'

This warning message indicates that the compiler is unable to locate the file "public.h" which is required for the proper functioning of the program. The file is expected to be present in the specified directory "C:\Keil_v5\C51\Inc\".

To resolve this issue, you can try the following steps:

1. Check if the file "public.h" exists in the specified directory. If it does not exist, you may need to download or obtain the file from a reliable source and place it in the directory.

2. If the file exists, check if the file path specified in the #include directive is correct. The correct format for the #include directive is:

#include <file_name.h>

where "file_name.h" is the name of the file to be included.

3. Check if the file path is added to the include directories list in the compiler options. If it is not added, add it to the include directories list.

4. If none of the above steps work, try reinstalling the compiler to ensure that all the required files are present.

Once the issue is resolved, the warning should disappear and the program should compile successfully.